题目内容
| (1)0.28:0.49 | (2)0.32:48 | (3)0.15:
| ||||||||||
(4)
| (3)
| (6)
|
(1)0.28:0.49=(0.28÷0.07):(0.49÷0.07)=4:7,
0.28:0.49=0.28÷0.49=
;
(2)0.32:48=(0.32÷0.32):(48÷0.32)=1:150,
0.32:48=0.32÷48=
;
(3)0.15:
=(0.15÷0.15):(
÷0.15)=1:1,
0.15:
=0.15÷
=1;
(4)
:
=(
×15):(
×15)=9:4;
:
=
÷
=
;
(5)
:0.75=
:0.75=(
÷
)÷(0.75÷
)=1:6,
:0.75=
÷0.75=
;
(6)
:
=(
×20):(
×20)=5:8,
:
=
÷
=
.
0.28:0.49=0.28÷0.49=
| 4 |
| 7 |
(2)0.32:48=(0.32÷0.32):(48÷0.32)=1:150,
0.32:48=0.32÷48=
| 1 |
| 150 |
(3)0.15:
| 3 |
| 20 |
| 3 |
| 20 |
0.15:
| 3 |
| 20 |
| 3 |
| 20 |
(4)
| 3 |
| 5 |
| 4 |
| 15 |
| 3 |
| 5 |
| 4 |
| 15 |
| 3 |
| 5 |
| 4 |
| 15 |
| 3 |
| 5 |
| 4 |
| 15 |
| 9 |
| 4 |
(5)
| 1 |
| 8 |
| 1 |
| 8 |
| 1 |
| 8 |
| 1 |
| 8 |
| 1 |
| 8 |
| 1 |
| 8 |
| 1 |
| 8 |
| 1 |
| 6 |
(6)
| 1 |
| 4 |
| 2 |
| 5 |
| 1 |
| 4 |
| 2 |
| 5 |
| 1 |
| 4 |
| 2 |
| 5 |
| 1 |
| 4 |
| 2 |
| 5 |
| 5 |
| 8 |
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